Wpblazer Plugin Communication Failure may happen if there is any conflict with other plugins.
Once you have resolved the conflict, click site dashboard button ,you site will be contacted again.
We found some articles that explains, WP-SpamSheild is conflicting some other plugins also like WPBlazer.
Below articles are showing that WP-SpamShield conflicted other plugins.
- IP Block
our IP got blocked at your server, you need to check if there is any deny statement at your .htaccess file
Ex: deny from